Now, some of you may find this very similar to a certain post that I made a few weeks back, I consider this one different since it's much less exploitable and is also quite minor.

Each armour type would have it's own hat that goes in the helmet slot (except Leather and Chainmail, Chainmail would have none and Leather would have 2)

Leather would have 2, which would both by dyeable:

Cap, a simple baseball cap. Crafted by putting 1 leather on the right of a normal leather hat (The already existing Leather Cap would be renamed to Leather Hat)

Top Hat, a stylish gray top hat with a red ribbon around the brim. The ribbon would be the dyeable part, and it would be crafted with the leggings recipe, but with wool at the bottom line and a diamond in the middle, as this is only meant for the richest and most fine folks in all the land.

Gold

Crown, a tall, cartoonish crown with a huge diamond in the center. It would be crafted by surrounding a diamond with gold ingots, minus the top middle.

Iron

Medieval Helmet, a cartoonish "T-shaped" helmet. Crafted by putting an iron ingot on the sides of an Iron Helmet.

Diamond

Diamond Crown, the Crown from before but Diamond instead of Gold and a big Emerald in the middle. Crafted by putting a Crown in the middle, with an emerald on top, surrounded by Diamonds.

A few months ago, I had the idea of there being different armour types with the same durability as others, to encourage customizability since Leather is so weak.

I will edit this post with new ideas when I have them.

They will sometimes have complimentary weapons.

Chorus Armour:

Same durability as Diamond, crafted by surrounding Diamond armour with Chorus Fruit.

Would have a deep, royal purple shade, with 2 end stone horns poking upwards from the sides.

Royal Armour:

Same durability as Diamond, crafted by surrounding Diamond armour with Gold Nuggets.

The helmet would be a crown, with a big emerald at the front, and assorted jewels studded around it. The chestplate would be a fluffy red robe with white on the edges. The Leggings would be a simple gray, and the Boots would be a darker gray.

Team Helmet:

Infinite durability, uncraftable.

The helmet would be a leather helmet with a triangular flag poking out of the top. The flag could by dyed, being used for team-based competitive minigames.

Caveman Armour:

Same durability as Iron, crafted by surrounding an Iron helmet with bone meal, and the rest with leather.

The helmet would be a broken skull, belonging to a cow or bull. The rest would be a fur cloth wrapped around the player's body.

There would be 2 complimentary weapons, the first being a giant bone, possibly from the animal that makes up the fossils found in Deserts and Swamps, crafted by surrounding a Diamond sword with bone meal. The Second would be a big cartoonish top-heavy wooden club, crafted by surrounding an iron sword with sticks.

Prismarine Armour:

Same durability as Diamond, crafted by surrounding Diamond armour with prismarine shards.

The helmet would have a dark prismarine shade, but with the helmet texture (minus the shine), with Elder Guardian horns poking out of it. The chestplate would have a prismarine texture with Elder Guardian horns poking out of the shoulders. The rest would just have a prismarine texture.

Roman Armour:

Same durability as Iron, crafted by surrounding Iron armour with iron nuggets.

The helmet would have a horizontal gold stripe above the eyes and a big, cartoonish dye-able plume coming out of the top. The rest would basically be a slightly darker iron with bits of chainmail throughout.

Recent updates haven't been helping people create new things with Minecraft, but are making new things for survival instead, which defeats the purpose of Minecraft, creating.

So, a while ago (really several years ago, but I've only started expanding on the idea recently) I thought of the idea of block, painting, and weapon creators built into the game.

It could be creative only, craftable, or whatever.

Basically there would be different tools for creating each.

Blocks:

When you use the tool, it would bring you into a "dimension" with a template block, it could be any block with 6 different textures.

Your hotbar would fill with a variety of image-editing tools.

When finished, it would be stored in the world folder and your .minecraft folder with whatever name you want.

The block would appear in a new Creative tab named "Custom".

The block id would be yourusername/acustomfolder:name

Painting creator and weapon creator:

I've bundled these two together because they are similar.

When you use the tool, it will bring you into an image-editing gui.

With the painting one, you can select the size of your painting.

With the weapon one, you can set the durability, damage, digging speed if it worked with tools, and range. There would be a cap for these to prevent admins from going around insta-killing people with a "super-mega-awesome sword". You could also set specific commands to be applied when holding, being hit by, hitting with, etc.

It would be saved the same way as the blocks and would also appear in the Custom folder.

The Diamond Crown seems kinda silly, but I like the idea of the Baseball Cap, Top Hat, Gold Crown and Knight's Helmet. (You could probably make those the actual names.)

I think the recipes need improvement, though. Or better yet, the items should be found in chests.

While I don't think it's essential, some practical uses might be nice. (I.E. The Top Hat makes Villager prices cheaper because they think you are an entrepreneur, the Knights Helmet has high durability, etc.)

Sea cucumbers could drop Gravel on death, which would make arrows able to be renewably crafted, give Sea Cucumbers an unique drop, and would also fit with an animal that shifts through the seafloor to obtain food.

They could also drop Sand as well, for similar reasons, and so Splash potions, glass and TNT (Specially the latter, as the others can be renewable due to trading) are renewable.

This is a great example of an original yet game-fitting mob. The idea of a "sea cucumber" would be laughable in any other game, but with Minecraft's silly atmosphere I can see it working quite well. Clay farming is a great way to make the mob useful- clay is hard to find, and rarely used when building now. I wouldn't have it drop primarine pearls or fish though- leave that to guardians and fishing.

I wouldn't be against adding seaweed to the OP, just make sure to connect it with the cucumber or else it may get marked as wishlist.

I like this idea, but I agree that it would make things like PvP a lot harder and more biased towards leather armored players. That would mean that players wouldn't want to look for better materials for their armor, and thus softlocking the game's progression.

However, I do agree that there should be some way in the game to "fully" dye leather armor. I think if mapmakers and people in op creative mode were allowed to custom-make this item, that would make sense. Leather armors should have the tag {Extras:1} by default, and if a mapmaker wants to remove the extra un-dyed part of the armor, they change the tag to {Extras:0}.